Notes

According to the Blacksmiths, if the name of a weapon ends with Used (ユーズド), Ace (エース), King (キング), Impact (インパクト), or Perfect (パーフェクト), it means it has a higher chance of a critical hit or that it does more damage when the player makes a critical hit. When found, "Used" equipment have half of their total durability, but it's nothing that the Blacksmith can't solve. Impact and Perfect items are VERY rare. (Only found one of them in Hard Mode)

Also, there is Deluxe (デリシャス, "Delicious") and Ultra (ウルトラ) in the data, but as those are rare, I have no idea if they are used or not.

Guardians

Equipment with "(Protected)", (守) in Japan, in the end of their name are protected by one or more Guardians. There are 13 Guardians in the game, each changing the equipment's stats:

Guardians

Stats

Status Change

MAX HP

Attack

Defense

Magic Atk

Magic Def

Dexterity

Speed

Consum. Rate

EXP Gain Rate

Gaea(ガイア)

Six stats up, MAX HP down

-1%

+1

+1

+1

+1

+1

+1

0

0

Zeus(ゼウス)

MAX HP and defense

+1%

0

+1

0

0

0

0

0

0

Poseidon(ポセイドン)

Attack and dexterity

0%

+

0

0

0

+

0

0

0

Hades(ハーデス)

Magic attack and speed

0%

0

0

+1

0

0

+1

0

0

Ares(アレス)

Attack and defense

0%

+1

+1

0

0

0

0

0

0

Athena(アテナ)

Attack and magic attack

0%

+1

0

+1

0

0

0

0

0

Apollo(アポロン)

Defense and magic defense

0%

0

+1

0

+1

0

0

0

0

Artemis(アルテミス)

Magic attack and magic defense

0%

0

0

+1

+1

0

0

0

0

Hermes(ヘルメス)

Speed and dexterity

0%

0

0

0

0

+1

+1

0

0

Bacchus(バッカス)

MAX HP and dexterity

+1%

0

0

0

0

+1

0

0

0

Daimon(サタン,Satan)

Attack and defense

-1%

+2

+2

-1

-1

-1

-1

0

0

Charon(ルシフェル,Lucifer)

Magic attack and magic defense

-1%

-1

-1

+2

+2

-1

-1

0

0

Mammon(マモン)

MAX HP and consumption rate

+2%

-1

-1

-1

-1

-1

-1

+2

0

It is possible to further increase (or decrease, in 4 cases) the stats of each Guardian by using Altars or combining equipments with the Blacksmith:

X1 = +1

X2 = +2

X3 = +4

X4 = +8

X5 = +16

X6 = +32

So, an item with Gaea X2, Zeus X5, Poseidon X1, Areas X1, Apollo X1, and Bacchus X2 as Guardians will have the following additional stats:

MAX HP

Attack

Defense

Magic Atk

Magic Def

Dexterity

Speed

Consum. Rate

EXP Gain Rate

+16%

+4

+20

+2

+3

+5

+2

0

0

Make sure to get drinks when one is found, as they are rare. It seems the Guardians limit by combining items with the Blacksmith is X4, and it can only go beyond that by using Altars. I need to test this more to be sure.